molecular cloud

基本解釋

The spectacular Horsehead Nebula is actually a projection of cold gas and dust extending from the dense Orion Molecular Cloud.
引人注目的馬頭星云實(shí)際上是低溫氣體和自稠密的獵戶座分子云延伸而來的塵埃相互作用而形成的突起物。
A molecular cloud is a region containing cool interstellar gas and dust left over from the formation of the galaxy and mostly contains molecular hydrogen.
分子云是一個(gè)包含冷卻星際氣體和塵埃的區(qū)域，這些氣體和塵埃是星系形成之后的殘留物，主要由氫分子組成。
The computative results show that the mass of core obtained according to the virial equilibrium of the dark molecular cloud is larger than one according to the LTE.
結(jié)果表明暗分子云處在維里平衡狀態(tài)下所得到的核的質(zhì)量要大于暗分子云處在局部熱動(dòng)平衡狀態(tài)下所得到的核的質(zhì)量。

a cool dense interstellar region composed of a wide variety of molecules, mainly hydrogen, plus some dust, in which stars are forming